Mil-Spec, Oversized, Beveled, Large Outside Diameter, SAE
Nylon, Steel, Stainless Steel, Titanium, Brass
45 mm, 3 1/2", 66 mm, 4", 19 mm
1.625", 0.219", 0.391", 1.563", 0.938"
5.8 mm, 0.7 mm, 0.5 mm, 8.1 mm, 0.28 mm
BS2870 CZ108, BS 4320C, DIN 125A, BS 4320B, ASME B18.21.1